Magnetic rotation accelerator and power generation system including the same

ABSTRACT

Provided are a magnetic rotation accelerator and a power generation system. The magnetic rotation accelerator includes: a shaft; a fixed plate through which the shaft penetrates and on which a plurality of first magnetic units are disposed; and a rotary plate through which the shaft penetrates, which faces the fixed plate and on which a plurality of second magnetic units are disposed, wherein a repulsive force is generated between the first magnetic units and the second magnetic units, the first magnetic units form a first row and a second row around the shaft, and the second magnetic units form a third row and a fourth row around the shaft, wherein central axes of the first magnetic units of the first row are in phase with central axes of the first magnetic units of the second row, and central axes of the second magnetic units of the third row are out of phase with central axes of the second magnetic units of the fourth row.

This application is a continuation of U.S. application Ser. No.14/943,795 filed on Nov. 17, 2015, which claims priority from KoreanPatent Application No. 10-2014-0160126 filed on Nov. 17, 2014 in theKorean Intellectual Property Office, both the disclosures of which areincorporated herein by reference in their entirety.

BACKGROUND

1. Technical Field

The present inventive concept relates to a magnetic rotation acceleratorand a power generation system including the same.

2. Description of the Related Art

A driving source (i.e., a driving motor) of a conventional electricgenerator has a predetermined driving capacity and a predeterminednumber of revolutions according to each manufacturer's conditions.Therefore, for the electric generator to generate rated power, theoutput power of the driving motor should be approximately three timesthat of a motor generator. This reduces the overall generationefficiency and causes a significant waste of energy.

SUMMARY

Aspects of the present inventive concept provide a magnetic rotationaccelerator which can achieve high energy efficiency.

Aspects of the present inventive concept also provide a power generationsystem which can achieve high energy efficiency.

However, aspects of the present inventive concept are not restricted tothe one set forth herein. The above and other aspects of the presentinventive concept will become more apparent to one of ordinary skill inthe art to which the present inventive concept pertains by referencingthe detailed description of the present inventive concept given below.

According to an aspect of the present inventive concept, there isprovided a magnetic rotation accelerator including: a shaft; a fixedplate through which the shaft penetrates and on which a plurality offirst magnetic units are disposed; and a rotary plate through which theshaft penetrates, which faces the fixed plate and on which a pluralityof second magnetic units are disposed, wherein a repulsive force isgenerated between the first magnetic units and the second magneticunits, the first magnetic units form a first row and a second row aroundthe shaft, and the second magnetic units form a third row and a fourthrow around the shaft, wherein central axes of the first magnetic unitsof the first row are in phase with central axes of the first magneticunits of the second row, and central axes of the second magnetic unitsof the third row are out of phase with central axes of the secondmagnetic units of the fourth row.

The rotary plate may rotate around the shaft while facing the fixedplate, the third row may rotate while facing the first row, and thefourth row may rotate while facing the second row.

The first magnetic units may be separated from each other, and thesecond magnetic units may be separated from each other.

A gap between the first magnetic units disposed in the second row may begreater than a gap between the first magnetic units disposed in thefirst row, and a gap between the second magnetic units disposed in thefourth row may be greater than a gap between the second magnetic unitsdisposed in the third row.

The number of the first magnetic units disposed in the first row may beequal to the number of the first magnetic units disposed in the secondrow.

The number of the second magnetic units disposed in the third row may beequal to the number of the second magnetic units disposed in the fourthrow.

The third row may rotate while facing the first row, and the number ofthe first magnetic units disposed in the first row may be different fromthe number of the second magnetic units disposed in the third row.

If two straight lines extending from the shaft are drawn, a firstmagnetic unit of the first row and a first magnetic unit of the secondrow may contact both of the two straight lines.

A straight line which extends from the shaft and contacts a secondmagnetic unit of the third row may not contact a second magnetic unit ofthe fourth row.

The central axes of the first magnetic units may be out of phase withmagnetic axes thereof, and the central axes of the second magnetic unitsmay be out of phase with magnetic axes thereof.

The magnetic axis of each of the first magnetic units may form an acuteangle in a first (for example, counterclockwise) direction with thecentral axis thereof, and the magnetic axis of each of the secondmagnetic units may form an acute angle in a second (for example,clockwise) direction with the central axis thereof.

The fixed plate may have the same size as the rotary plate.

The fixed plate may have a different size from the rotary plate.

According to another aspect of the present inventive concept, there isprovided a magnetic rotation accelerator including: a shaft; a fixedplate through which the shaft penetrates and on which a plurality offirst magnetic units separated from each other are disposed; and arotary plate through which the shaft penetrates, which faces the fixedplate and on which a plurality of second magnetic units separated fromeach other are disposed, wherein a repulsive force is generated betweenthe first magnetic units and the second magnetic units, the firstmagnetic units form a first row and a second row around the shaft, andthe second magnetic units form a third row and a fourth row around theshaft, wherein the third row rotates while facing the first row, and thenumber of the first magnetic units disposed in the first row isdifferent from the number of the second magnetic units disposed in thethird row.

The fourth row may rotate while facing the second row, and the number ofthe first magnetic units disposed in the second row may be differentfrom the number of the second magnetic units disposed in the fourth row.

Central axes of the first magnetic units may be out of phase withmagnetic axes thereof, and central axes of the second magnetic units maybe out of phase with magnetic axes thereof.

According to another aspect of the present inventive concept, there isprovided a magnetic rotation accelerator including: a shaft; a fixedplate through which the shaft penetrates and on which a plurality offirst magnetic units separated from each other are disposed; and arotary plate through which the shaft penetrates, which faces the fixedplate and on which a plurality of second magnetic units separated fromeach other are disposed, wherein a repulsive force is generated betweenthe first magnetic units and the second magnetic units, the firstmagnetic units form a first row and a second row around the shaft, andthe second magnetic units form a third row and a fourth row around theshaft, wherein the third row rotates while facing the first row, and thefourth row rotates while facing the second row, wherein while the rotaryplate rotates, a time when the second magnetic units of the third rowbegin to overlap the first magnetic units of the first row is differentfrom a time when the second magnetic units of the fourth row begin tooverlap the first magnetic units of the second row.

According to still another aspect of the present inventive concept,there is provided a magnetic rotation accelerator including: a shaft; amotor which rotates the shaft; a power supply unit which supplies powerto the motor; a fixed plate through which the shaft penetrates and onwhich a plurality of first magnetic units are disposed; and a rotaryplate which rotates as the shaft rotates and faces the fixed plate andon which a plurality of second magnetic units are disposed, wherein arepulsive force is generated between the first magnetic units and thesecond magnetic units, the first magnetic units form a first row and asecond row around the shaft, and the second magnetic units form a thirdrow and a fourth row around the shaft, wherein central axes of the firstmagnetic units of the first row are in phase with central axes of thefirst magnetic units of the second row, central axes of the secondmagnetic units of the third row are out of phase with central axes ofthe second magnetic units of the fourth row, each of the first andsecond magnetic units has unbalanced magnetic vector waves, the centralaxes of the first magnetic units are out of phase with magnetic axesthereof, the central axes of the second magnetic units are out of phasewith magnetic axes thereof, and the power supply unit repeats the supplyand shut-off of power while the rotary plate rotates.

According to still another aspect of the present inventive concept,there is provided a magnetic rotation accelerator including: a shaft; amotor which rotates the shaft; a power supply unit which supplies powerto the motor; a fixed plate through which the shaft penetrates and onwhich a plurality of first magnetic units separated from each other aredisposed; and a rotary plate which rotates as the shaft rotates andfaces the fixed plate and on which a plurality of second magnetic unitsseparated from each other are disposed, wherein a repulsive force isgenerated between the first magnetic units and the second magneticunits, the first magnetic units form a first row and a second row aroundthe shaft, and the second magnetic units form a third row and a fourthrow around the shaft, wherein the third row rotates while facing thefirst row, the number of the first magnetic units disposed in the firstrow is different from the number of the second magnetic units disposedin the third row, each of the first and second magnetic units hasunbalanced magnetic vector waves, central axes of the first magneticunits are out of phase with magnetic axes thereof, central axes of thesecond magnetic units are out of phase with magnetic axes thereof, andthe power supply unit repeats the supply and shut-off of power while therotary plate rotates.

According to still another aspect of the present inventive concept,there is provided a magnetic rotation accelerator including: a shaft; amotor which rotates the shaft; a power supply unit which supplies powerto the motor; a fixed plate through which the shaft penetrates and onwhich a plurality of first magnetic units separated from each other aredisposed; and a rotary plate which rotates as the shaft rotates andfaces the fixed plate and on which a plurality of second magnetic unitsseparated from each other are disposed, wherein a repulsive force isgenerated between the first magnetic units and the second magneticunits, the first magnetic units form a first row and a second row aroundthe shaft, and the second magnetic units form a third row and a fourthrow around the shaft, wherein the third row rotates while facing thefirst row, and the fourth row rotates while facing the second row,wherein while the rotary plate rotates, a time when the second magneticunits of the third row begin to overlap the first magnetic units of thefirst row is different from a time when the second magnetic units of thefourth row begin to overlap the first magnetic units of the second row,each of the first and second magnetic units has unbalanced magneticvector waves, central axes of the first magnetic units are out of phasewith magnetic axes thereof, central axes of the second magnetic unitsare out of phase with magnetic axes thereof, and the power supply unitrepeats the supply and shut-off of power while the rotary plate rotates.

According to still another aspect of the present inventive concept,there is provided a magnetic rotation accelerator including: a shaft; amotor which rotates the shaft; a power supply unit which supplies powerto the motor; a fixed plate through which the shaft penetrates and onwhich a plurality of first magnetic units separated from each other aredisposed; and a rotary plate which rotates as the shaft rotates andfaces the fixed plate and on which a plurality of second magnetic unitsseparated from each other are disposed, wherein a repulsive force isgenerated between the first magnetic units and the second magneticunits, the first magnetic units form a first row and a second row aroundthe shaft, and the second magnetic units form a third row and a fourthrow around the shaft, wherein if two straight lines extending from theshaft are drawn, a first magnetic unit of the first row and a firstmagnetic unit of the second row contact both of the two straight lines,a straight line which extends from the shaft and contacts a secondmagnetic unit of the third row does not contact a second magnetic unitof the fourth row, each of the first and second magnetic units hasunbalanced magnetic vector waves, central axes of the first magneticunits are out of phase with magnetic axes thereof, central axes of thesecond magnetic units are out of phase with magnetic axes thereof, andthe power supply unit repeats the supply and shut-off of power while therotary plate rotates.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects and features of the present inventiveconcept will become more apparent by describing in detail exemplaryembodiments thereof with reference to the attached drawings, in which:

FIG. 1 is a cross-sectional view of a magnetic rotation acceleratoraccording to a first embodiment of the present inventive concept;

FIG. 2 is a plan view of a fixed plate illustrated in FIG. 1;

FIG. 3 is a conceptual diagram illustrating the relationship between aplurality of first magnetic units installed on the fixed plate of FIG.2;

FIGS. 4A, 4B and 5 are conceptual diagrams illustrating a magnetic fieldof a first magnetic unit installed on the fixed plate of FIG. 2;

FIG. 6 is a plan view of a rotary plate illustrated in FIG. 1;

FIG. 7 is a conceptual diagram illustrating the relationship between aplurality of second magnetic units installed on the rotary plate of FIG.6;

FIG. 8 is a conceptual diagram illustrating a method of driving themagnetic rotation accelerator according to the first embodiment of thepresent inventive concept;

FIG. 9 is a cross-sectional view of a magnetic rotation acceleratoraccording to a second embodiment of the present inventive concept;

FIG. 10 is a cross-sectional view of a magnetic rotation acceleratoraccording to a third embodiment of the present inventive concept;

FIG. 11 is a cross-sectional view of a magnetic rotation acceleratoraccording to a fourth embodiment of the present inventive concept;

FIG. 12 is a cross-sectional view of a magnetic rotation acceleratoraccording to a fifth embodiment of the present inventive concept;

FIGS. 13 and 14 are conceptual diagrams of the magnetic rotationaccelerator of FIG. 12;

FIG. 15 is a plan view of a magnetic rotation accelerator according to asixth embodiment of the present inventive concept;

FIG. 16 is a cross-sectional view of the magnetic rotation acceleratoraccording to the sixth embodiment of the present inventive concept; and

FIGS. 17 and 18 are plan and cross-sectional views of a power generationsystem according to embodiments of the present inventive concept.

DETAILED DESCRIPTION OF THE INVENTIVE CONCEPT

Advantages and features of the present inventive concept and methods ofaccomplishing the same may be understood more readily by reference tothe following detailed description of exemplary embodiments and theaccompanying drawings. The present inventive concept may, however, beembodied in many different forms and should not be construed as beinglimited to the embodiments set forth herein. Rather, these embodimentsare provided so that this disclosure will be thorough and complete andwill fully convey the concept of the inventive concept to those skilledin the art, and the present inventive concept will only be defined bythe appended claims. Like reference numerals refer to like elementsthroughout the specification.

It will be understood that when an element is referred to as being“connected to” or “coupled to” another element, it can be directlyconnected or coupled to the other element or intervening elements may bepresent. In contrast, when an element is referred to as being “directlyconnected to” or “directly coupled to” another element, there are nointervening elements present. Like numbers refer to like elementsthroughout. As used herein, the term “and/or” includes any and allcombinations of one or more of the associated listed items.

It will be understood that, although the terms first, second, third,etc., may be used herein to describe various elements, components and/orsections, these elements, components and/or sections should not belimited by these terms. These terms are only used to distinguish oneelement, component or section from another element, component orsection. Thus, a first element, component or section discussed belowcould be termed a second element, component or section without departingfrom the teachings of the present inventive concept.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the inventiveconcept. As used herein, the singular forms “a”, “an” and “the” areintended to include the plural forms as well, unless the context clearlyindicates otherwise. It will be further understood that the terms“comprises” and/or “comprising,” when used in this specification,specify the presence of stated components, steps, operations, and/orelements, but do not preclude the presence or addition of one or moreother components, steps, operations, elements, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which this inventive concept belongs. Itwill be further understood that terms, such as those defined in commonlyused dictionaries, should be interpreted as having a meaning that isconsistent with their meaning in the context of the relevant art andwill not be interpreted in an idealized or overly formal sense unlessexpressly so defined herein.

FIG. 1 is a cross-sectional view of a magnetic rotation accelerator 1according to a first embodiment of the present inventive concept. FIG. 2is a plan view of a fixed plate 170 illustrated in FIG. 1. FIG. 3 is aconceptual diagram illustrating the relationship between a plurality offirst magnetic units 271, 272 and 275 installed on the fixed plate 170of FIG. 2. FIGS. 4A, 4B and 5 are conceptual diagrams illustrating amagnetic field of a first magnetic unit 271 installed on the fixed plate170 of FIG. 2. FIG. 6 is a plan view of a rotary plate 120 illustratedin FIG. 1. FIG. 7 is a conceptual diagram illustrating the relationshipbetween a plurality of second magnetic units 221, 222 and 225 installedon the rotary plate 120 of FIG. 6. FIG. 8 is a conceptual diagramillustrating a method of driving the magnetic rotation accelerator 1according to the first embodiment of the present inventive concept.

Referring to FIG. 1, the magnetic rotation accelerator 1 according tothe first embodiment of the present inventive concept includes a shaft110, the fixed plate 170, the rotary plate 120, and a power supply unit190.

The shaft 110 penetrates through the fixed plate 170 and the rotaryplate 120.

The first magnetic units 271, 272 and 275 are disposed on the fixedplate 170. The rotary plate 120 is placed to face the fixed plate 170,and the second magnetic units 221, 222 and 225 are disposed on therotary plate 120. A repulsive force is generated between the firstmagnetic units 271, 272 and 275 and the second magnetic units 221, 222and 225. That is, the first magnetic units 271, 272 and 275 have thesame polarity as the second magnetic units 221, 222 and 225 which facethe first magnetic units 271, 272 and 275. For example, north (N) polesof the first magnetic units 271, 272 and 275 may face N poles of thesecond magnetic units 221, 222 and 225. Therefore, as illustrated in thedrawing, the fixed plate 170 and the rotary plate 120 may be separatedby a certain distance.

As illustrated in the drawing, the fixed plate 170 and the rotary plate120 may be the same size.

The power supply unit 190 is connected to the shaft 110. The powersupply unit 190 supplies power to a motor (not illustrated, see FIGS. 16and 18). The shaft 110 is rotated by the rotation of the motor. Inaddition, as the shaft 110 rotates, the rotary plate 120 also rotates.The power supply unit 190 may be, but is not limited to, a battery. Theuse of the battery allows the magnetic rotation accelerator 1 to beeasily moved or installed and easily utilized regardless of place. Inaddition, since the battery is not used much as will be described later,the magnetic rotation accelerator 1 can be utilized for a long time evenwith a small-capacity battery.

In the magnetic rotation accelerator 1 according to the first embodimentof the present inventive concept, the power supply unit 190 suppliespower for a first period of time and does not supply power for a secondperiod of time after the first period of time. Here, the second periodof time may be longer than the first period of time. After the secondperiod of time, the power supply unit 190 resumes supplying power. Inthis way, the power supply unit 190 may supply power periodically. Forexample, the power supply unit 190 supplies power only for a period oftime during which the rotary plate 120 rotates 1,000 to 3,000 times.Then, the power supply unit 190 does not supply power for the secondperiod of time. For the second period of time, the rotary plate 120 mayrotate using a magnetic field surfing operation. Magnetic field surfingis a similar concept to wind surfing that uses waves of the sea. Whenmagnetic waves of a magnet are regarded as vectors, magnetic fieldsurfing is to surf fixed magnetic vector waves using rotating magneticvector waves. Magnetic field surfing can be performed using a relativephase difference of magnetic fields generated between the first magneticunits 271, 272 and 275 installed on the fixed plate 170 and the secondmagnetic units 221, 222 and 225 installed on the rotary plate 120.

In addition, when the rotary plate 120 rotates slower than a presetspeed or after a preset period of time, the power supply unit 190 maysupply power to the motor again. Accordingly, the rotary plate 120 mayrotate at the preset speed again. In this way, while the rotary plate120 rotates, the power supply unit 190 may repeat the supply andshut-off of power. For example, the power supply unit 190 may repeat thesupply and shut-off of power periodically. Alternatively, the powersupply unit 190 may repeat the supply and shut-off of powernon-periodically, for example, based on the speed of the rotary plate120. For example, the power supply unit 190 may check the rotation speedof the rotary plate 120 using a speed sensor and repeat the supply andshut-off of power based on the checking result.

When the surfing operation of the rotary plate 120 is not smooth (or isnot performed to a desired degree), the rotary plate 120 may reattemptthe surfing operation after the adjustment of the distance between therotary plate 120 and the fixed plate 170. The distance is a factor thathas an important effect on the surfing operation of the rotary plate120. As the distance between the rotary plate 120 and the fixed plate170 is reduced, the repulsive force between them increases. When thedistance between the rotary plate 120 and the fixed plate 170 becomes aparticular value, the rotary plate 120 can rotate fast even with lowpower.

The exemplary configuration of the fixed plate 170 and the rotary plate120 for magnetic field surfing will now be described with reference toFIGS. 2 through 7.

First, the fixed plate 170 will be described with reference to FIGS. 2through 5. A plurality of first magnetic units 271, 272 and 275 aredisposed on the fixed plate 170. The first magnetic units 271, 272 and275 may form a plurality of rows L1, L2 and L5 around the shaft 110.Therefore, a distance from the shaft 110 to a first row L1 may besmaller than a distance from the shaft 110 to a second row L2. In FIG.2, three rows L1, L2 and L5 are illustrated. However, the number of rowsis not limited to three and may also be two or may be in a range of fourto six. When the number of rows is greater than six, the magnetic fieldsurfing effect to be described below may not be great.

A plurality of first magnetic units 271, 272 or 275 separated from eachother may be arranged in each row L1, L2 or L5.

Specifically, the number of first magnetic units 271 disposed in thefirst row L1 may be equal to the number of first magnetic units 272disposed in the second row L2. Fourteen first magnetic units 271 may bedisposed in the first row L1, and fourteen first magnetic units 272 maybe disposed in the second row L2. In each of the first row L1 and thesecond row L2, 11 to 24 first magnetic units 271 or 272 may be disposed.

As in the first row L1 and the second row L2, in a fifth row L5 disposedbetween the shaft 110 and the first row L1, fourteen first magneticunits 275 may be disposed. However, since the fifth row L5 isimmediately adjacent to the shaft 110, the number of the first magneticunits 275 may be smaller if there are limitations of space.

In addition, a gap W2 between the first magnetic units 272 disposed inthe second row L2 is greater than a gap W1 between the first magneticunits 271 disposed in the first row L1.

Referring to FIG. 3, a central axis CL of a first magnetic unit 271 ofthe first row L1 may be the same as (i.e., be parallel with) a centralaxis CL of a first magnetic unit 272 of the second row L2. In otherwords, a first magnetic unit 275 of the fifth row L5, the first magneticunit 271 of the first row L1, and the first magnetic unit 272 of thesecond row L2 may be in phase with each other.

The first magnetic unit 272 of the second row L2 may be larger than thefirst magnetic unit 271 of the first row L1. The first magnetic unit 271of the first row L1 may be larger than the first magnetic unit 275 ofthe fifth row L5.

In addition, if two straight lines a1 and a2 extending from the shaft110 are drawn, the first magnetic unit 271 of the first row L1 and thefirst magnetic unit 272 of the second row L2 may contact both of the twostraight lines a1 and a2. Here, when the first magnetic unit 271 of thefirst row L1 and the first magnetic unit 272 of the second row L2contact both of the two straight lines a1 and a2, sidewalls of the firstmagnetic units 271 and 272 overlap the two straight lines a1 and a2.

The central axes CL of the first magnetic units 271, 272 and 275 of therows L1, L2 and L5 may have phase differences with magnetic axes MC1,MC2 and MC5, respectively. The overall system has a phase difference.The central axes CL may be different from the magnetic axes MC1, MC2 andMC5, respectively.

For example, there may be an angle difference of θ1 between acorresponding central axis CL and each of the magnetic axes MC1, MC2 andMC5. Here, θ1 may be an acute angle in a first (for example,counterclockwise) direction from the central axis CL. In FIG. 3, theangle difference between the corresponding central axis CL and each ofthe magnetic axes MC1, MC2 and MC5 is equal. However, the presentinventive concept is not limited thereto. For example, the angledifference between the central axis CL and the magnetic axis MC1 and theangle difference between the central axis CL and the magnetic axis MC2can change variously.

Referring to FIGS. 4A, 4B and 5, FIG. 4A is a plan view of a firstmagnetic unit (e.g., 271). For example, the N pole of the first magneticunit 271 is illustrated in FIG. 4A. FIG. 4B illustrates magnetic vectorwaves of the first magnetic unit 271. Referring to FIGS. 4A and 4B, thefirst magnetic unit 271 has an unbalanced magnetic field. Therefore,magnetic vector waves MV1 through MV5 and MV11 through MV15 of the firstmagnetic unit 271 are unbalanced. For example, the magnetic vector wavesMV1 may be largest at the N pole of the first magnetic unit 271 and maybe leaned to one side (a left side in FIG. 4B). The magnetic vectorwaves MV11 may be largest at a south (S) pole of the first magnetic unit271 and may be leaned to one side (a right side in FIG. 4B).

The magnetic axis MC1 may be a continuous flow that connects the largestmagnetic vector waves MV1 as illustrated in FIG. 4A.

Referring to FIG. 5, the first magnetic unit 271 may have unbalancedmagnetic field lines at the N pole and the S pole. For example, anglesof the N pole and the S pole may be, but are not limited to, 0 to 45degrees, and a magnetic force may be, but is not limited to, 3,000 to5,000 gausses.

The rotary plate 120 will now be described with reference to FIGS. 6 and7.

A plurality of second magnetic units 221, 222 and 225 are disposed onthe rotary plate 120. The second magnetic units 221, 222 and 225 mayform a plurality of rows L3, L4 and L6 around the shaft 110. Forexample, a distance from the shaft 110 to a third row L3 is smaller thana distance from the shaft 110 to a fourth row L4. In FIG. 6, three rowsL3, L4 and L6 are illustrated. However, the number of rows is notlimited to three and may also be two or may be four or more.

The third row L3 of the rotary plate 120 rotates while facing the firstrow L1 of the fixed plate 170, and the fourth row L4 of the rotary plate120 rotates while facing the second row L2 of the fixed plate 170. Asixth row L6 of the rotary plate 120 rotates while facing the fifth rowL5 of the fixed plate 170.

A plurality of second magnetic units 221, 222 or 225 separated from eachother are disposed in each row L3, L4 or L6.

Specifically, the number of second magnetic units 221 disposed in thethird row L3 may be equal to the number of second magnetic units 222disposed in the fourth row L4. Thirteen second magnetic units 221 may bedisposed in the third row L3, and thirteen second magnetic units 222 maybe disposed in the fourth row L4. In each of the third row L3 and thefourth row L4, 11 to 24 second magnetic units 221 or 222 may bedisposed.

As in the third row L3 and the fourth row L4, in the sixth row L6disposed between the shaft 110 and the third row L3, thirteen secondmagnetic units 225 may be disposed. However, since the sixth row L6 isimmediately adjacent to the shaft 110, the number of the second magneticunits 225 may be smaller if there are limitations of space.

As described above, the third row L3, the fourth row L4 and the sixthrow L6 rotate while facing the first row L1, the second row L2 and thefifth row L5, respectively. However, the number of the first magneticunits 271 disposed in the first row L1 is different from the number ofthe second magnetic units 221 disposed in the third row L3. Likewise,the number of the first magnetic units 272 disposed in the second row L2may be different from the number of the second magnetic units 222disposed in the fourth row L4.

In addition, a gap W4 between the second magnetic units 222 disposed inthe fourth row L4 is greater than a gap W3 between the second magneticunits 221 disposed in the third row L3.

The second magnetic units 221 disposed in the third row L3 may be largerthan the second magnetic units 222 disposed in the fourth row L4. Thesecond magnetic units 221 disposed in the third row L3 may be largerthan the second magnetic units 225 disposed in the sixth row L6.

Referring to FIG. 7, a central axis CL3 of a second magnetic unit 221 ofthe third row L3 may be not parallel to (i.e., have a phase differencewith) a central axis CL4 of a second magnetic unit 222 of the fourth rowL4. Specifically, the second magnetic unit 221 of the third row L3 maybe located behind a second magnetic unit 225 of the sixth row L6 with aphase difference therebetween, and the second magnetic unit 222 of thefourth row L4 may be located behind the second magnetic unit 221 of thethird row L3 with a phase difference therebetween. Specifically, astraight line a3 extending from the shaft 110 may contact the secondmagnetic unit 221 of the third row L3 but may not contact the secondmagnetic unit 222 of the fourth row L4.

Although not specifically illustrated in the drawings, like the firstmagnetic units 271, 272 and 275 described above, the second magneticunits 221, 222 or 225 of each row L3, L4 or L6 have unbalanced magneticvector waves.

The central axes CL3, CL4 and CL6 of the second magnetic units 221, 222and 225 of the rows L3, L4 and L6 may be not parallel to (i.e., havephase differences with) corresponding magnetic axes MC3, MC4 and MC6,respectively. For example, there may be an angle difference of θ2between a corresponding central axis CL3, CL4 or CL6 and each of themagnetic axes MC3, MC4 and MC6. Here, θ2 may be an acute angle in aclockwise direction from the central axis CL3, CL4 or CL6. In FIG. 7,the angle difference between the corresponding central axis CL3, CL4 orCL6 and each of the magnetic axes MC3, MC4 and MC6 is equal. However,the present inventive concept is not limited thereto. For example, theangle difference between the central axis CL3 and the magnetic axis MC3and the angle difference between the central axis CL4 and the magneticaxis MC4 may be different.

A method of driving the magnetic rotation accelerator 1 according to thefirst embodiment of the present inventive concept will now be describedwith reference to FIGS. 1 through 8.

First, the power supply unit 190 supplies power to the motor (notillustrated, see reference numeral 301 in FIGS. 16 and 18) for a firstperiod of time. As the motor rotates, the shaft 110 rotates. The firstperiod of time may be determined by the size of the rotary plate 120/thefixed plate 170, the size/magnetic force of the first magnetic units271, 272 and 275, and the size/magnetic force of the second magneticunits 221, 222 and 225. The first period of time may be a period of timeduring which the rotary plate 120 is rotated fully to have inertia. Forexample, the power supply unit 190 may supply power only for a period oftime during which the rotary plate 120 rotates 1,000 to 3,000 times.

Then, the power supply unit 190 does not supply power for a secondperiod of time after the first period of time. For the second period oftime, the rotary plate 120 may rotate using a magnetic field surfingoperation. Here, the second period of time may be a preset, fixed periodof time or a variable period of time. After the second period of time,the power supply unit 190 may resume supplying power. In this way, thepower supply unit 190 may repeat the supply and shut-off of powerperiodically.

When the surfing operation of the rotary plate 120 is not smooth (or isnot performed to a desired degree), the rotary plate 120 may reattemptthe surfing operation after the adjustment of a distance between therotary plate 120 and the fixed plate 170.

The magnetic field surfing operation will now be described in greaterdetail with reference to FIG. 8. Referring to FIG. 8, at a time t1, as afirst magnetic unit 275 of the fifth row L5 and a second magnetic unit225 of the sixth row L6 intersect each other (or overlap each other), afirst repulsive force RP1 begins to be generated.

The first repulsive force RP1 increases as the intersection area (theoverlap area) between the first magnetic unit 275 and the secondmagnetic unit 225 increases. Therefore, at a time t2, as the rotaryplate 120 rotates, the first repulsive force RP1 may increase.

Here, as a first magnetic unit 271 of the first row L1 and a secondmagnetic unit 221 of the third row L3 intersect each other (or overlapeach other), a second repulsive force RP2 begins to be generated. Thisis because the second magnetic unit 221 of the third row L3 is locatedbehind the second magnetic unit 225 of the sixth row L6 with a phasedifference therebetween.

At a time t3, the first repulsive force RP1 is continued because thefirst magnetic unit 275 of the fifth row L5 and the second magnetic unit225 of the sixth row L6 still overlap each other.

As the intersection area between the first magnetic unit 271 of thefirst row L1 and the second magnetic unit 221 of the third row L3increases, the second repulsive force RP2 may increase.

Here, as a first magnetic unit 272 of the second row L2 and a secondmagnetic unit 222 of the fourth row L4 intersect each other (or overlapeach other), a third repulsive force RP3 begins to be generated. This isbecause the second magnetic unit 222 of the fourth row L4 is locatedbehind the second magnetic unit 221 of the third row L3 with a phasedifference therebetween.

At a time t4, the second repulsive force RP2 is continued because thefirst magnetic unit 271 of the first row L1 and the second magnetic unit221 of the third row L3 still overlap each other.

As the intersection area between the first magnetic unit 272 of thesecond row L2 and the second magnetic unit 222 of the fourth row L4increases, the third repulsive force RP3 may increase.

Therefore, the rotary plate 120 may rotate over a period of t1 to t4.

In summary, a time when the second magnetic unit 225 of the sixth row L6begins to overlap the first magnetic unit 275 of the fifth row L5 isdifferent from a time when the second magnetic unit 221 of the third rowL3 begins to overlap the first magnetic unit 271 of the first row L1.Likewise, a time when the second magnetic unit 221 of the third row L3begins to overlap the first magnetic unit 271 of the first row L1 isdifferent from a time when the second magnetic unit 222 of the fourthrow L4 begins to overlap the first magnetic unit 272 of the second rowL2. Therefore, fixed magnetic vector waves of the fixed plate 170 aresurfed using rotating magnetic vector waves of the rotary plate 120 asdescribed above. In addition, θ1 may be an acute angle in thecounterclockwise direction from the central axis CL, and θ2 may be anacute angle in the clockwise direction from the central axis CL3, CL4 orCL6. Due to the above configuration, when the rotary plate 120 rotates,the rotating magnetic vector waves of the rotary plate 120 are connectedto the fixed magnetic vector waves of the fixed plate 170.

Meanwhile, contrary to illustrated in FIGS. 2 through 8, a central axisCL of a first magnetic unit 271 of the first row L1 may be not parallelwith (i.e., have a phase difference with) a central axis CL of a firstmagnetic unit 272 of the second row L2. In other words, a first magneticunit 275 of the fifth row L5, the first magnetic unit 271 of the firstrow L1, and the first magnetic unit 272 of the second row L2 may be notin phase with each other. In this case, a central axis CL3 of a secondmagnetic unit 221 of the third row L3 may be parallel to a central axisCL4 of a second magnetic unit 222 of the fourth row L4.

FIG. 9 is a cross-sectional view of a magnetic rotation accelerator 2according to a second embodiment of the present inventive concept. FIG.10 is a cross-sectional view of a magnetic rotation accelerator 3according to a third embodiment of the present inventive concept. FIG.11 is a cross-sectional view of a magnetic rotation accelerator 4according to a fourth embodiment of the present inventive concept. Forsimplicity, the second through fourth embodiments will be described,focusing mainly on differences with the first embodiment described abovewith reference to FIGS. 1 through 8.

Referring to FIG. 9, in the magnetic rotation accelerator 2 according tothe second embodiment of the present inventive concept, a rotary plate120 a is smaller than a fixed plate 170 a. The magnetic rotationaccelerator 2 configured in this way is referred to as an inner typemagnetic rotation accelerator. First magnetic units 271, 272 and 275 ofthe fixed plate 170 a and second magnetic units 221, 222 and 225 of therotary plate 120 a may be configured as described above.

Referring to FIG. 10, in the magnetic rotation accelerator 3 accordingto the third embodiment of the present inventive concept, a rotary plate120 b is larger than a fixed plate 170 b. The magnetic rotationaccelerator 3 configured in this way is referred to as an outer typemagnetic rotation accelerator. First magnetic units 271, 272 and 275 ofthe fixed plate 170 and second magnetic units 221, 222 and 225 of therotary plate 120 are configured as described above.

Referring to FIG. 11, in the magnetic rotation accelerator 4 accordingto the fourth embodiment of the present inventive concept, rotary plates120 and 121 may be disposed on both sides of a fixed plate 170.

Or, two fixed plates may be disposed on both sides of a rotary plate.

The distance between the rotary plate and the fixed plate is a factorthat has an important effect on the surfing operation of the rotaryplate. As the distance between the rotary plate and the fixed plate isreduced, the repulsive force between them increases. When the distancebetween the rotary plate and the fixed plate becomes a particular value,the rotary plate can rotate fast even with low power.

FIG. 12 is a cross-sectional view of a magnetic rotation accelerator 5according to a fifth embodiment of the present inventive concept. FIGS.13 and 14 are conceptual diagrams of the magnetic rotation accelerator 5of FIG. 12. FIGS. 13 and 14 illustrate part of the magnetic rotationaccelerator 5 of FIG. 12.

Referring to FIGS. 12 through 14, the magnetic rotation accelerator 5according to the fifth embodiment of the present inventive concept mayinclude a fixed plate and a plurality of rotary plates, thereby forminga harmonic drive system. The inner type magnetic rotation acceleratorand the outer type magnetic rotation accelerator described above may becombined to form a large-sized magnetic rotation accelerator. Thismagnetic rotation accelerator 5 can be introduced to a power motor or atransportable machine.

A fixed plate 1170 and rotary plates 1120 and 1123 located on and underthe fixed plate 1170 are disposed on a shaft 1110. Rotary plates 1121and 1124 are disposed on a shaft 1111. Rotary plates 1122 and 1125 aredisposed on a shaft 1112. At least two of the rotary plates 1120 through1125 may have different sizes.

The fixed plate 1170 may include a first part 1170 b and a second part1170 a formed around the first part 1170 b.

Referring to FIG. 13, repulsive forces R1 and R2 are generated among thesecond part 1170 a of the fixed plate 1170 and the rotary plates 1120,1121 and 1122. In addition, repulsive forces T1 and T2 may be generatedamong the rotary plates 1120, 1121 and 1122.

Referring to FIG. 14, repulsive forces R3 and R4 are generated among thefirst part 1170 b of the fixed plate 1170 and the rotary plates 1123,1124 and 1125. In addition, repulsive forces T3 and T4 may be generatedamong the rotary plates 1123, 1124 and 1125.

In the above configuration, a plurality of corresponding rotary platescan be rotated using one fixed plate.

FIG. 15 is a plan view of a magnetic rotation accelerator 6 according toa sixth embodiment of the present inventive concept. FIG. 16 is across-sectional view of the magnetic rotation accelerator 6 according tothe sixth embodiment of the present inventive concept. FIGS. 15 and 16illustrate a specific implementation of the magnetic rotationaccelerator 1 of FIGS. 1 through 7.

Referring to FIGS. 15 and 16, the magnetic rotation accelerator 6according to the sixth embodiment of the present inventive concept mayinclude a fixed plate 170, a rotary plate 120, a motor 301, anelectronic clutch 302, ball bearings 304 and 314, ball screws 308, guideshafts 307, a lower support 310, an upper support 320, a geared motor312, leveling feet 315, and a pulley 330.

The guide shafts 307 are disposed between the lower support 310 and theupper support 320. The guide shafts 307 are placed to separate the lowersupport 310 and the upper support 320. For example, four guide shafts307 may be disposed at corners of the lower support 310 and corners ofthe upper support 320. The leveling feet 315 may be used to adjust theheight of the lower support 310.

The electronic clutch 302 and the motor 301 may be disposed on the uppersupport 320. The motor 301 may or may not be rotated by the ON/OFFoperation of the electronic clutch 302. The motor 301 may include abattery. The motor 301 may be, but is not limited to, a direct current(DC) motor.

Components such as the fixed plate 170, the rotary plate 120, a shaft110, and the geared motor 312 may be disposed in a space between thelower support 310 and the upper support 320. The shaft 110 is connectedto the motor 301 and rotated by the operation of the motor 301. Asdescribed above with reference to FIGS. 1 through 7, the motor 301 maybe turned on for a first period of time and turned off for a secondperiod of time after the first period of time. While the motor 301 isturned off, the rotary plate 120 may be rotated by a magnetic fieldsurfing operation.

The geared motor 312 is connected to the ball screws 308. The gearedmotor 312 is used to adjust a distance between the fixed plate 170 andthe rotary plate 120. The geared motor 312 can raise or lower the fixedplate 170 or raise or lower the rotary plate 120. Repulsive forces ofmagnets can be controlled by adjusting the distance.

FIGS. 17 and 18 are plan and cross-sectional views of a power generationsystem according to embodiments of the present inventive concept.

Referring to FIGS. 17 and 18, the power generation system 10 accordingto the embodiments of the present inventive concept includes a magneticrotation accelerator 6 and an electric generator 7 which generateselectricity when receiving power from the magnetic rotation accelerator6.

As described above, the magnetic rotation accelerator 6 may include ashaft 110, a fixed plate 170 through which the shaft 110 penetrates andon which first magnetic units 271, 272 and 275 are disposed, and arotary plate 120 through which the shaft 110 penetrates, which faces thefixed plate 170 and on which a plurality of second magnetic units 221,222 and 225 are disposed. A repulsive force is generated between thefirst magnetic units 271, 272 and 275 and the second magnetic units 221,222 and 225. The first magnetic units 271, 272 and 275 form a first rowL1 and a second row L2 around the shaft 110. Central axes of the firstmagnetic units 271 of the first row L1 are in phase with central axes ofthe first magnetic units 272 of the second row L2. The second magneticunits 221, 222 and 225 form a third row L3 and a fourth row L4 aroundthe shaft 110, and central axes of the second magnetic units 221 of thethird row L3 are out of phase with central axes of the second magneticunits 222 of the fourth row L4. A motor 301 is turned on for a firstperiod of time and turned off for a second period of time after thefirst period of time. While the motor 301 is turned off, the rotaryplate 120 may be rotated by a magnetic field surfing operation.

In addition, a pulley 330 is installed on the shaft 110 of the magneticrotation accelerator 6. The pulley 330 and a pulley 430 of the electricgenerator 7 are connected to each other by a belt 510. The pulley 430 isconnected to a first gear 411, and the first gear 411 engages with asecond gear 412. Therefore, when the shaft 110 of the magnetic rotationaccelerator 6 rotates, a turning force is transmitted to the electricgenerator 7 through the pulleys 330 and 430, the belt 510 and the firstand second gears 411 and 412. The electric generator 7 generateselectricity using this turning force.

When the magnetic rotation accelerator 6 is used, the motor 301 operatesonly for a required period of time. In the other period of time, themagnetic rotation accelerator 6 operates through the magnetic fieldsurfing operation. Therefore, the power generation system 10 employingthe magnetic rotation accelerator 6 has high overall generationefficiency and hardly wastes energy.

While the present inventive concept has been particularly shown anddescribed with reference to exemplary embodiments thereof, it will beunderstood by those of ordinary skill in the art that various changes inform and detail may be made therein without departing from the spiritand scope of the present inventive concept as defined by the followingclaims. The exemplary embodiments should be considered in a descriptivesense only and not for purposes of limitation.

What is claimed is:
 1. A magnetic rotator comprising: a first plate onwhich a plurality of first magnetic units are disposed; and a secondplate which faces the first plate and on which a plurality of secondmagnetic units are disposed, wherein either one of the first plate orthe second plate rotates on an axis, while the other does not rotate, arepulsive force is generated between the first magnetic units and thesecond magnetic units, the first magnetic units form a first row and asecond row around a shaft, and the second magnetic units form a thirdrow and a fourth row around the shaft, wherein central axes of the firstmagnetic units of the first row are in phase with central axes of thefirst magnetic units of the second row, central axes of the secondmagnetic units of the third row are out of phase with central axes ofthe second magnetic units of the fourth row, each of the first andsecond magnetic units has unbalanced magnetic vector waves, the centralaxes of the first magnetic units are out of phase with magnetic axesthereof, the central axes of the second magnetic units are out of phasewith magnetic axes thereof.
 2. The magnetic rotator of claim 1, whereinthe second plate rotates around the shaft while facing the first plate,the third row rotates while facing the first row, and the fourth rowrotates while facing the second row.
 3. The magnetic rotator of claim 1,wherein a gap between the first magnetic units disposed in the secondrow is greater than a gap between the first magnetic units disposed inthe first row, and a gap between the second magnetic units disposed inthe fourth row is greater than a gap between the second magnetic unitsdisposed in the third row.
 4. The magnetic rotator of claim 1, whereinthe number of the first magnetic units disposed in the first row isequal to the number of the first magnetic units disposed in the secondrow.
 5. The magnetic rotator of claim 4, wherein the number of thesecond magnetic units disposed in the third row is equal to the numberof the second magnetic units disposed in the fourth row.
 6. The magneticrotator of claim 5, wherein the third row rotates while facing the firstrow, and the number of the first magnetic units disposed in the firstrow is different from the number of the second magnetic units disposedin the third row.
 7. The magnetic rotator of claim 1, wherein if twostraight lines extending from the shaft are drawn, a first magnetic unitof the first row and a first magnetic unit of the second row contactboth of the two straight lines.
 8. The magnetic rotator of claim 7,wherein a straight line which extends from the shaft and contacts asecond magnetic unit of the third row does not contact a second magneticunit of the fourth row.
 9. The magnetic rotator of claim 1, wherein thepower supply unit supplies power to the motor for a first period oftime, the motor operates when supplied with power from the power supplyunit, the second plate rotates as the shaft connected to the motorrotates, the power supply unit does not supply power to the motor for asecond period of time after the first period of time, the second plateperforms a magnetic field surfing operation for the second period oftime, and the power supply unit supplies power to the motor again afterthe second period of time.
 10. The magnetic rotator of claim 1, whereinthe magnetic axis of each of the first magnetic units forms an acuteangle in a first direction with the central axis thereof, and themagnetic axis of each of the second magnetic units forms an acute anglein a second direction with the central axis thereof.
 11. The magneticrotator of claim 1, wherein the first plate has the same size as thesecond plate.
 12. The magnetic rotator of claim 1, wherein the firstplate has a different size from the second plate.
 13. A magnetic rotatorcomprising: a first plate on which a plurality of first magnetic unitsare disposed; and a second plate which faces the first plate and onwhich a plurality of second magnetic units are disposed, wherein eitherone of the first plate or the second plate rotates on an axis, while theother does not rotate, a repulsive force is generated between the firstmagnetic units and the second magnetic units, the first magnetic unitsform a first row and a second row around a shaft, and the secondmagnetic units form a third row and a fourth row around the shaft,wherein the third row rotates while facing the first row, the number ofthe first magnetic units disposed in the first row is different from thenumber of the second magnetic units disposed in the third row, each ofthe first and second magnetic units has unbalanced magnetic vectorwaves, central axes of the first magnetic units are out of phase withmagnetic axes thereof, central axes of the second magnetic units are outof phase with magnetic axes thereof.
 14. The magnetic rotator of claim13, wherein the fourth row rotates while facing the second row, and thenumber of the first magnetic units disposed in the second row isdifferent from the number of the second magnetic units disposed in thefourth row.
 15. A magnetic rotator comprising: a first plate on which aplurality of first magnetic units are disposed; and a second plate whichfaces the first plate and on which a plurality of second magnetic unitsare disposed, wherein either one of the first plate or the second platerotates on an axis, while the other does not rotate, a repulsive forceis generated between the first magnetic units and the second magneticunits, the first magnetic units form a first row and a second row arounda shaft, and the second magnetic units form a third row and a fourth rowaround the shaft, wherein the third row rotates while facing the firstrow, and the fourth row rotates while facing the second row, whereinwhile the second plate rotates, a time when the second magnetic units ofthe third row begin to overlap the first magnetic units of the first rowis different from a time when the second magnetic units of the fourthrow begin to overlap the first magnetic units of the second row, each ofthe first and second magnetic units has unbalanced magnetic vectorwaves, central axes of the first magnetic units are out of phase withmagnetic axes thereof, central axes of the second magnetic units are outof phase with magnetic axes thereof.
 16. A magnetic rotator comprising:a first plate on which a plurality of first magnetic units are disposed;and a second plate which faces the first plate and on which a pluralityof second magnetic units are disposed, wherein either one of the firstplate or the second plate rotates on an axis, while the other does notrotate, a repulsive force is generated between the first magnetic unitsand the second magnetic units, the first magnetic units form a first rowand a second row around a shaft, and the second magnetic units form athird row and a fourth row around the shaft, wherein if two straightlines extending from the shaft are drawn, a first magnetic unit of thefirst row and a first magnetic unit of the second row contact both ofthe two straight lines, a straight line which extends from the shaft andcontacts a second magnetic unit of the third row does not contact asecond magnetic unit of the fourth row, each of the first and secondmagnetic units has unbalanced magnetic vector waves, central axes of thefirst magnetic units are out of phase with magnetic axes thereof,central axes of the second magnetic units are out of phase with magneticaxes thereof.
 17. A magnetic rotator comprising: a first plate on whicha plurality of first magnetic units are disposed; and a second platewhich faces the first plate and on which a plurality of second magneticunits are disposed, wherein either one of the first plate or the secondplate rotates on an axis, while the other does not rotate, a repulsiveforce is generated between the first magnetic units and the secondmagnetic units, the first magnetic units form a first row and a secondrow around the shaft, and the second magnetic units form a third row anda fourth row around the shaft, wherein each of the first and secondmagnetic units has unbalanced magnetic vector waves, the central axes ofthe first magnetic units are out of phase with magnetic axes thereof,the central axes of the second magnetic units are out of phase withmagnetic axes thereof.
 18. The magnetic rotator of claim 17, wherein thethird row rotates while facing the first row, a first angle between thecentral axis and the magnetic axis of the second magnetic unit in thethird row is different from a second angle between the central axis andthe magnetic axis of the first magnetic unit in the first row.
 19. Themagnetic rotator of claim 18, wherein the first angle between thecentral axis and the magnetic axis of the second magnetic unit in thethird row is different from a third angle between the central axis andthe magnetic axis of the second magnetic unit in the fourth row.